Toothbrush



Patented Aug. 27, 1929.'

UNITED STATI-:s

ROBERT SO'UKUP, OF CHICAGO, ILLINOIS.

Too'rHBRUsH.

Application led February 4, 1928. Serial No. 251,820.

This invention relates to new and useful improvements in tooth brushes,and the like, and has among its objects to provide atooth brush having ahandleforming a container for tooth paste and means inthe handle forfeeding the tooth paste from the Ihandle container, through the body ofthe brush in between the bristles thereof.

Another object of my invention is to provide a tooth brush with achannel in the top thereof and a suitable attachable dentifricecontainer for manually feedin the dentifrice through the channel into te brush.

A further object of the invention is to provide a tooth brush bodyhaving a removable portion therein forming a channel for feeding toothpaste or the like.

A still further object of my invention resides in the provision of aresilient valve for the tooth paste channel which will automaticallyseal the channel above the opening into the bristle portion to preventthe drying of the paste in the brush portion.

Another object of my invention is to provide a, tooth paste containeradapted to c0nnection to a brush portion and having a rec- -tangularplunger movable by a screw to compress the paste in the container andthus forcibly feed same into the brush portion.

With these and other objects in view my invention con'sists in the novelcombination, construction and arrangement of the parts and members shownin the preferred embodiment in the attached drawings, described in 25the following specifications and particularly pointed out in theappended claim.

Referring to the attached drawings Fig. 1, is a longitudinal sectionthrough a tooth brush embodying my invention.

is a cross section taken on line 3-3 of Fig.

1, showing the traveling plunger or nut.

Fig. 4, is a cross section taken on line 4-4 of Fig. 1. Fi 5, is a crosssectlon taken on line 5--5 of F1g. 1, and Fi 6, is a cross section takenon line 6-6 o Fig. 1', showing the channel for the tooth paste.

In the illustrations, 10 generally indicates the complete tooth brushwhich comprises a brush body 10"L having suitably arranged bristles 10B.The brush body portion 10A is provided with an opening or passage 10Clocated about in the center thereof. The

brush portion 10A is also formed with an integral portion of decreasedcross section Fig. 2,'is a plan view of Fig. 1. Fig. 3v

extending toward the rear end thereof to form ashort handle portion 10D.

The cover 11 may be of any suitable material or may be of metal andsilver or nickelplated or may be made of aluminum.

' The cover 11 forms a channel for the passage of the tooth paste intothe brush portion 10A and extends from the end of the short handleportion 10D and into groove of the enlarged end 10E of the portion 10A.A portion of the sides of the cover 11 at the end of the handle portion10D is extended to substantially form a tubular end 11A into which theend of the handle portion 10D is tightly fitted and the outside of theend 11A is threaded for screw connection into the end of the pastecontainer 12. The edges of the inverted 'U portion fitting into thegrooves along theedge of the portion 10A and the extension 10D.

The tooth paste container .12 comprises a body 12A of rectangular crosssection having a restricted discharge end 12B of circular cross sectionand a tight-fitting cap 12C. A screw 13 is mounted for rotation in thecap 12C. A square plunger or nut 14 is mounted on the screw 13. Theinner end of the screw is provided with a collar 13A to form a stop forthe plunger 14. The ortion of the screw near the inner face o the cap12C is enlarged `to prevent its outward movement. A knurled nut 15 isfixed to the outer end of the screw 13 `whereby the screw may be rotatedto cause an inward travel of the plunger 14 to thereby compress thetooth paste within the rectangular chamber of the handle to cause itspassage through the channel underneath the cover 11 into the opening 10Cof the tooth brush.

If desirable, the upper face of the brush body 1()A may be channeled asat 10F to provide slightly more room for the passage of the tooth paste.Also the cover 11 may be provided with a leaf s ring valve 11C whichwill permit the forcib y pressed aste into the brush through the opening10C ut which will close the end of the channel under the cover when .thepressure on the paste body is released.

I claim The combination in a brush comprising a body, bristles on oneside of said body, said body having a passage extending from the outerside thereof to the' bristle side thereof,

and an integral rearward extension, the end portion of said bodyextending forwardly from said passage being enlarged on the outer sidethereof, said extension having a pair of grooves on the outer side ofsaid body extending along the sides thereof and interconnected with aU-shaped groove in the rear end of said enlarged end portion, a coverfor said body and its integral rearward extension extending from therear end of said integral extension to said enlarged end, said coverbeing formed in a substantially inverted U-sh'aped cross section withits'longitudinally extending edges fitting into said grooves and theforward end thereof fitting into said interconnecting groove, and

the other end thereof having a tubular integral portion embracing therearward end of said body extension, said cover forming an enclosedchannel from the rear end of said body extension to said passage in saidbody, a handle adapted for screw connection over the rear end of saidcover, said handle having a chamber therein of rectangular cross sectionwith an outlet at its forward end communicating with said channel, a capfor the handle at the other end thereof, a

.screw mounted for rotation in.. said cap, and

a traveling nut of rectangular formation mounted to travel on sald screwduring its rotation. l

